Finding the Fourth Proportional to 63,139,208.25, 86,499,267.86 and 60,778,605.33

Step by Step Solution

1. Step 1: Write the proportion equation
   63,139,208.25 : 86,499,267.86 = 60,778,605.33 : x
2. Step 2: Convert to fraction form
   63,139,208.25/86,499,267.86 = 60,778,605.33/x
3. Step 3: Cross multiply
   63,139,208.25x = 86,499,267.86 × 60,778,605.33
4. Step 4: Simplify right side
   63,139,208.25x = 5,257,304,862,293,001
5. Step 5: Solve for x
   x = 5,257,304,862,293,001/63,139,208.25
6. Step 6: Final answer
   x = 83,265,295.97